Blender

ABSTRACT

Proposed is a blender in which when the closure of a container lid of a container body is detected, a main body operates. In the blender, a transparent conductive member is disposed to electrically connect an upper end part of the container body with a lower end part of the container body such that the transparency of the container body is maintained, and when the closure of the container lid of the container body is detected, power is transmitted from a first induction coil of the main body to a second induction coil of the container body, and when receiving the change of the current of the first induction coil caused by a magnetic field of the second induction coil generated by the power transmitted to the second induction coil, the main body recognizes the closure of the container lid of the container body and operates.

TECHNICAL FIELD

The present disclosure relates generally to a blender. Moreparticularly, the present disclosure relates to a blender in which amain body operates when the closure of a container lid of a containerbody is detected.

BACKGROUND ART

Generally, a blender is a household appliance which chops or crushesfood received in a container body by blades rotated by an electricmotor, and is also commonly referred to as a food mixer.

In such a blender, the container body is seated on the upper surface ofa main body in which the motor is provided, and when the container bodyis seated, the blades provided in the container body are connected to arotating shaft of the motor to be rotatable.

After a user puts food in the container body through an open portion ofthe container body and closes a container lid thereof, the user operatesthe motor by manipulating the main body to rotate the blades such thatthe food is crushed.

The container lid closes the open portion of the container body toprotect food inside the container body. For safety during the operationof the blender, the blades are not rotated in a state in which thecontainer lid does not close the container body. That is, to preventaccidents due to the blades, the blades are preferably allowed to berotated only when the closure of the container lid of the container bodyis detected.

Conventionally, various methods of detecting the closure of a containerlid have been proposed.

For example, in U.S. Pat. Nos. 6,910,800 and 7,871,196, a push rodphysically connecting the container body with the blender body isprovided, and when the container lid closes the container body, thecontainer lid presses the push rod. A press detection part of the mainbody detects the pressing of the container lid, and detects the closureof the container lid.

However, the push rod and the press detection part are required to beseparately installed, and the press detection part may be contaminateddue to moisture or food that may enter the press detection part.

In addition, the push rod of the container body and the press detectionpart of the main body are required to be installed at positionscorresponding to each other, so there is a problem that the containerbody is required to be mounted only in a specific direction.

Additionally, the push rod is required to be installed along thecontainer body in a longitudinal direction thereof from the containerbody to the main body, so the design of the container body made of atransparent material is spoiled.

Recently, in order to solve this problem, a technique of detecting theclosure of the container lid of the container body by the main body byusing wireless communication or electromagnetic coupling between thecontainer body and the main body has been disclosed.

For example, in European Patent No. EP2548485, when a container lidcloses the container body, a blender detecting the closure of thecontainer lid of the container body by the main body by using a wirelesscommunication module is disclosed.

However, in such a prior art, the wireless communication module isrequired, and a separate power supply is required to be provided in thecontainer body so as to drive the wireless communication module.

For another example, in US Patent Application Publication No.2018/0020875, an interlocking blending device is disclosed in which atransmitting coil and a receiving coil are disposed in the main body,and a receiving coil and a transmitting coil are disposed in a containerbody so as to correspond to the transmitting coil and receiving coil,respectively, and when a container lid closes the container body, poweris transmitted to the receiving coil of the container body through thetransmitting coil of the main body, and in turn, the power istransmitted to the receiving coil of the main body through thetransmitting coil of the container body, so that the main body detectsthe closure of the container lid of the container body.

However, in such a prior art, two coils, that is, a transmitting coiland a receiving coil, are required to be installed in each of the mainbody and the container body, and a device analyzing power received bythe receiving coil of the main body is required.

In addition, two coils are arranged in each of the main body and thecontainer body, and when electric current flows through each coil,induced currents change due to interference between magnetic fieldsinduced in the coils. Accordingly, it is difficult to accurately analyzepower received by the receiving coil of the main body.

Furthermore, power is transmitted from the transmitting coil of the mainbody to the receiving coil of the container body, and due to the closureof a container lid of the container body, the power is transmitted fromthe transmitting coil of the container body to the receiving coil of themain body. In order to allow the receiving coil of the main body toreceive effective power, high power is required to be transmitted fromthe transmitting coil of the main body to the receiving coil of thecontainer body.

Additionally, to electrically connect a container lid detection circuitwith the main body, a conductive member is installed along thetransparent container body, and thus the design of the transparentcontainer body is spoiled.

DISCLOSURE Technical Problem

The present disclosure is intended to propose a blender in which oneinduction coil may be disposed in a main body and one induction coil maybe disposed in a container body and through one inductive couplingbetween the two induction coils, the closure of a container lid of thecontainer body is detected.

The present disclosure is intended to propose a blender in which adetection error or contamination due to external contaminants such aswater or food is prevented.

The present disclosure is intended to propose a blender in which thedesign of the container body made of a transparent material ismaintained.

The present disclosure is intended to propose a blender in which theclosure of the container lid of the container body is accuratelydetected with low power.

The present disclosure is intended to propose a blender in whichinduction coils mounted to the main body and the container body,respectively, are configured to be removable therefrom.

The present disclosure is intended to propose a blender in which whenthe container lid closes the container body, a magnetic field induced inan electromagnet is detected such that the main body can detect theclosure of the container lid of the container body.

The objectives of the present disclosure are not limited to theobjectives mentioned above, and other objectives not mentioned may beclearly understood by those skilled in the art to which the presentdisclosure belongs from the following description.

Technical Solution

In a blender of the present disclosure, through one-time inductivecoupling between a first induction coil mounted to a main body and asecond induction coil mounted to a container body, a current detectionpart mounted to the main body may detect the change of current of thefirst induction coil, so that the main body may detect the closure ofthe container lid of the container body.

In the blender of the present disclosure, according to the closure ofthe container lid of the container body, inductive coupling between thefirst induction coil and the second induction coil of the container bodymay be performed.

In the blender of the present disclosure, power may be generated in thesecond induction coil by inductive coupling between the first inductioncoil of the main body and the second induction coil of the containerbody, and the generated power may be used to form an electromagnet andgenerate a magnetic field.

In the blender of the present disclosure, when the container lid of thecontainer body is closed, a detection module disposed in the containerbody may detect the closure of the container lid, and when the closureof the container lid is detected by the detection module, inductivecoupling between the first and second induction coils may be performed.

In the blender of the present disclosure, the detection module mountedto the upper part of the container body and the second induction coilmounted to the lower part of the container body may be electricallyconnected to each other through a conductive member made of atransparent material disposed from the upper part of the container bodyto the lower part thereof in the longitudinal direction of the containerbody.

In the blender of the present disclosure, a transparent electrode film(ITO) may be used as the conductive member, and the conductive membermay be disposed in the longitudinal direction of the transparentcontainer body from the upper part of the container body to the lowerpart thereof.

In the blender of the present disclosure, the first end of thetransparent electrode film may be electrically connected to thedetection module by a first connector which is detachable, and thesecond end of the transparent electrode film may be electricallyconnected to the second induction coil by a second connector which isdetachable.

In the blender of the present disclosure, the first induction coil andthe second induction coil may be disposed to be parallel to each otherby facing each other such that the first induction coil and the secondinduction coil have the same center points, so inductive couplingbetween the first and second induction coils may be effectivelyperformed.

In the blender of the present disclosure, the first and second inductioncoils may be configured to be patterned on first and second PCBsubstrates, respectively, so as to be disposed to have easy and simpleconfiguration.

In the blender of the present disclosure, when the container body ismounted to the main body, the first and second PCB substrates may beinstalled to be parallel to each other by facing each other, such thatthe first and second induction coils patterned on the first and secondPCB substrates, respectively, have the same center points, so inductivecoupling between the first and second induction coils may be effectivelyperformed.

In the blender of the present disclosure, the first and second PCBsubstrates may be attached to and detached from the main body and thecontainer body, respectively, so inductive coils may be easily andsimply replaced.

In the blender of the present disclosure, when the current detectionpart detects the change of current of the first induction coil, the mainbody may detect the closure of the container lid of the container bodyand may operate.

Advantageous Effects

The blender according to the present disclosure has the followingeffects.

First, in the blender of the present disclosure, the second inductioncoil may be disposed on the lower part of the container body, and thefirst induction coil may be disposed on the upper part of the main body,and thus according to the closure of the container lid, only one-timeinductive coupling between the first and second induction coils may beperformed, thereby realizing simple control and operation and preventinginterference of a magnetic field between the induction coils compared toa prior art.

Second, in the blender of the present disclosure, a module and a deviceconfigured to detect the closure of the container lid of the containerbody may be installed inside the container body and the main body,thereby preventing a detection error or contamination due to externalcontaminants such as water or food.

Third, in the blender of the present disclosure, for electricalconnection between modules, the transparent electrode film (ITO) may beused to be disposed inside and outside of the container body, therebymaintaining the design of the transparent container body.

Fourth, in the blender of the present disclosure, an electromagnet and amagnetic sensor may be used when detecting the closure of the containerlid of the container body, thereby accurately detecting the closure ofthe container lid of the container body with low power.

Fifth, in the blender of the present disclosure, the first and secondinduction coils may be patterned on PCB substrates, respectively,thereby having an easy and simple configuration.

Sixth, in the blender of the present disclosure, the first and secondinduction coils mounted to the main body and the container body,respectively, may be attached thereto and detached therefrom, therebyenabling easy mounting and convenient replacement.

DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of an exterior of a blender according to anembodiment of the present disclosure.

FIG. 2 is a front view of the blender.

FIG. 3 is a vertical sectional view of the blender.

FIG. 4 is a perspective view of a main body which is a component of theblender according to the embodiment of the present disclosure.

FIG. 5 is an exploded perspective view of the main body.

FIG. 6 is an exploded perspective view of a container body which is acomponent of the blender according to the present disclosure.

FIG. 7 is a perspective view of an inner container body according to thepresent disclosure seen at a different angle.

FIG. 8 is a detailed view of a detection module of the container body.

FIG. 9 is an exploded perspective view of a second coil PCB module ofthe container body seen from a lower side thereof.

FIG. 10 is a view schematically illustrating the configuration of aportion of the blender according to the embodiment of the presentdisclosure.

FIG. 11 is a detailed view of the upper surface of a first coil PCBmodule of the main body.

FIG. 12 is a detailed view of the lower surface of the second coil PCBmodule of the container body.

FIG. 13 is a view schematically illustrating arrangement between thefirst and second coil PCB modules.

FIG. 14 is a view illustrating an example of an equivalent circuitdiagram of the blender of FIG. 10.

FIG. 15 is a graph illustrating the experimental result of the change ofcurrent detected by a current detection part of the main body in theblender of FIG. 10.

FIG. 16 is a flowchart illustrating a process in which the main bodydetects the closure of a container lid according to the embodiment ofthe present disclosure.

FIG. 17 is a flowchart describing a process in which the main bodydetects the closure of the container lid according to another embodimentof the present disclosure.

MODE FOR INVENTION

Advantages and features of the present disclosure and a method ofachieving them will become apparent by referring to embodimentsdescribed below in detail in conjunction with the accompanying drawings.However, the present disclosure is not limited to the embodimentsdisclosed below and may be implemented in various different forms. Thepresent embodiments are only provided to fully inform those of ordinaryskill in the art to which the present disclosure belongs of the scope ofthe invention so that the disclosure of the present disclosure iscomplete. The present disclosure is defined by the scope of the claims.Like reference numerals refer to like elements throughout thespecification.

Hereinafter, a blender of the present disclosure will be described indetail with reference to the accompanying drawings.

FIG. 1 is a perspective view of an exterior of a blender according to anembodiment of the present disclosure, FIG. 2 is a front view of theblender, and the blender, and FIG. 3 is a vertical sectional view of theblender.

Referring to the drawings, the blender 1 according to the embodiment ofthe present disclosure may include a main body 30 disposed on afoundation surface, and a container body 10 seated on the upper part ofthe main body 30.

A motor assembly 50 for operating the blender 1, electrical devicesincluding a control PCB module 60, and components may be disposed insidethe main body 30.

The main body 30 may be provided with a manipulation part 40 and 310 bfor manipulating the operation of the blender 1, and a display part 310a for displaying the operation thereof.

The main body 30 may be configured to have a hexahedral shape as awhole, and a seating part 301 may be provided on the upper surface ofthe main body 30 so as to seat the container body 10 on the seating part301. The seating part 301 may be configured such that the container body10 is attached to and detached from the seating part 301 in a verticaldirection.

The exterior of the main body 30 may be constituted by an outer casing31 which is made of metal or has a metal texture, and the outer casing31 may be configured to have a hexahedral shape having an open lowersurface.

An inner casing 32 may be formed in the outer casing 31, and space inwhich the motor assembly 50 and the control PCB module 60 are mountedmay be defined inside the inner casing 32.

A knob 40 may be provided on the front surface of the main body 30 suchthat a user sets the operation of the blender 1. The knob 40 mayprotrude from the front surface of the main body 30 and may manipulateand set the operation of the blender 1 by being rotated.

The display part 310 a may be provided on the upper surface of the mainbody 30 so as to display the operation state of the blender 1. Thedisplay part 310 a may be configured as at least one seven-segmentdisplay.

A touch manipulation part 310 b may be provided on the upper surface ofthe main body 30 such that the start or stop of the operation of theblender 1 can be manipulated. In order to manipulate the blender 1, themanipulation part 40 and 310 b may include at least any one of the knob40 and a touch module (not shown).

The seating part 301 may be formed on the upper surface of the main body30. The seating part 301 may protrude from the upper surface of the mainbody 30, and a portion of the seating part 301 may be inserted into thelower surface of the container body 10 so as to stably support thecontainer body 10.

When the container body 10 is seated on the seating part 301, the motorassembly 50 may be coupled to a blade module 14 provided in thecontainer body 10 and may transmit a rotational force to the blademodule 14.

The seating part 301 may have an appearance formed of the same materialas the outer casing 31. The seating part 301 may be formed of a metalmaterial or a material having a metal texture to have a sense of unitywith the appearance of the main body 30 as a whole.

The motor assembly 50 may be mounted inside the main body 30 locatedunder the seating part 301. The motor assembly 50 is intended to rotatethe blade module 14 installed inside the container body 10, and maydrive a motor in the motor assembly 50 to rotate the blade module 14 athigh speed.

The motor assembly 50 may control the rotation speed of the motoraccording to the manipulation of the knob 40 such that the rotationspeed of the blade module 14 can be controlled.

A first coil PCB module 310 may be disposed on a first side of the uppersurface of the seating part 301. The first coil PCB module 310 mayinclude a first PCB substrate on which a first induction coil ispatterned by being wound multiple times. The first coil PCB module 310may be connected to the control PCB module 60 and may receive power fromthe control PCB module 60.

The first PCB substrate may be attached to and detached from the mainbody 30. The attachment and detachment of the first PCB substrate may beenabled by the attachment and detachment of the first coil PCB module310.

Additionally, the first PCB substrate and the first induction coil mayalso be replaced by replacing the first coil PCB module 310.

The motor assembly 50 may include a motor therein. The upper end of themotor assembly 50 may be connected to the blade module 14 located at thelower end of the container body 10, and a cooling fan 55 may be providedon the lower end of the motor assembly 50.

The cooling fan 55 may be configured such that multiple fan blades 552are radially disposed on the upper surface of a fan plate 551 having ashape of a plate, and during the operation of the motor assembly 50, mayrotate simultaneously with the blade module 14 such that cold airintroduced in the axial direction of the cooling fan 55 is radiallydischarged, so the flow of the cold air in the main body 30 may beeffectively forced.

Multiple control PCB modules 60 may be disposed on the inner wallsurface of the inner casing 32 constituting the inner side surface ofthe main body 30. The control PCB module 60 may include multiple controlPCB modules, and the multiple control PCB modules may be disposed on thecircumference of the inner side surface of the main body 30, that is, onthe front, rear, left, and right surfaces thereof, respectively.

The control PCB module 60 may include multiple controllers (not shown)capable of controlling the operation of the main body 30 and thecontainer body 10. These controllers may be provided by mounting a MYCOM(a microprocessor) to a PCB substrate in the form of an on-chip, and mayinclude a program and software necessary for controlling the main body30 and the container body 10.

The container body 10 may be configured as a cylindrical shapecorresponding to the outer diameter of the seating part 301, and mayhave an open upper surface, so the container body may have space thereinin which food is received.

The container body 10 may be formed of a transparent material such asglass or materials like glass through which the inner portion of thecontainer body 10 can be seen.

The container body 10 may have the blade module 14 provided at thecenter of the inner lower surface thereof. The blade module 14 mayinclude multiple blades 141 and may be connected to the motor assembly50. Accordingly, when the motor assembly 50 operates in a state in whichthe container body 10 is seated on the main body 30, the blades 141 mayrotate and grind or cut food contained inside the container body 10.

Multiple inner guides 121 may be provided in the container body 10 toguide food that is rotated. Each of the inner guides 121 may extend by apredetermined length upward from the lower end of the inner side surfaceof the container body 10.

Meanwhile, a second coil PCB module 110 may be disposed on a side of thelower end of the container body 10. The second coil PCB module 110 mayinclude a second PCB substrate on which a second induction coil ispatterned by being wound multiple times.

The second coil PCB module 110 may be disposed at a position verticallycorresponding to the first coil PCB module 310. Particularly, the firstinduction coil and the second induction coil may be preferably disposedat positions opposite to each other.

The second PCB substrate may be attached to and detached from thecontainer body 10. The attachment and detachment of such a second PCBsubstrate may be enabled by the attachment and detachment of the secondcoil PCB module 110.

Furthermore, the second PCB substrate and the second induction coil mayalso be replaced by replacing the second coil PCB module 110.

A spout 15 through which crushed food is poured may protrude from theupper end of the container body 10, and a handle 13 may be provided at aside facing the spout 15 by protruding therefrom.

The handle 13 may protrude from the upper end of the container body 10to the outside and then may extend downward such that a user can lift orcarry the container body 10. The protruding end portion of the handle 13may be located on the same extension line as the side end of the mainbody 30.

A detection module 151 configured to detect the closure of a containerlid 20 may be installed on the inner side of the container body 10 towhich the handle 13 is coupled. The detection module 151 may be embodiedas a PCB substrate, and may include a switch.

The detection module 151 may detect the closure of the container lid 20in such a manner that the switch provided therein operates according tothe closure of the container lid 20, and may determine whether toperform inductive coupling between the first and second coil PCB modules310 and 110.

That is, when the detection module 151 detects the closure of thecontainer lid 20 of the container body 10, current transmission betweenthe first and second coil PCB modules 310 and 110 may be performed, butwhen the detection module 151 does not detect the closure of thecontainer lid 20, current transmission between the first and second coilPCB modules 310 and 110 may not be performed.

The detection module 151 and the second coil PCB module 110 may beelectrically connected to each other by a conductive member 161. Theconductive member 161 may be installed between an outer container body11 and an inner container body 12.

The conductive member 161 may be electrically connected to the detectionmodule 151 in a first end thereof, and may be electrically connected tothe second coil PCB module 110 in a second end thereof by extending fromthe upper end of the container body 10 to the lower end thereof.

The detection module 151 and the second coil PCB module 110 may beprovided with first and second connectors 152 and 111, respectively, foreffective electrical connection to the conductive member 161. By usingthe first and second connectors 152 and 111, the detection module 151and the second coil PCB module 110 may be easily attached to anddetached from the conductive member 161. Accordingly, the detectionmodule 151, the second coil PCB module 110, and the conductive member161 may be more easily attached to and detached from the blender 1, andreplacement thereof may also be easy.

The conductive member 161 may be in contact with the inner or outersurface of the container body 10. When being in contact with the outersurface, the conductive member 161 may be coated with a predeterminedcoating material to be fixedly attached to the outer surface.

The conductive member 161 may be formed of a transparent material suchthat the design of the container body 10 of the transparent material canbe maintained.

The blender 1 according to the embodiment of the present disclosure mayinclude the container lid 20.

The container lid 20 may shield the open upper surface of the containerbody 10, and a user may open the open upper surface of the containerbody 10 by separating the container lid 20 from the container body 10.

The open upper surface of the container body 10 may be closed (referredto as the closure of a container lid) or opened (referred to as theopening of the container lid) by the container lid 20 such that the openupper surface of the container body 10 may be closed and opened.

The container lid 20 may include a container lid handle 21.

A triggering member 210 turning on/off the switch of the detectionmodule 151 may be arranged on the inner surface of a side of thecontainer lid 20. When the triggering member 210 approaches thedetection module 151 within a predetermined distance, the switchprovided in the detection module 151 may be turned on. Contrarily, whenthe triggering member 210 moves away from the predetermined distance,the switch may be turned off.

Meanwhile, as described above, the blender 1 according to the embodimentof the present disclosure may be operated by the manipulation of theknob 40 and the touch manipulation part 310 b, but may be configured tobe selectively operated only under a specific condition.

For example, the blender 1 according to the embodiment may be operatedonly in the state in which the container lid 20 closes the containerbody 10, that is, in the state of the closure of the container lid. Thisis because when the blender 1 operates in the open state of thecontainer lid, accidents may occur due to the blades 141, which aresharp, and food contained in the container body 10 may be ejected to theoutside.

FIG. 4 is a perspective view of the main body which is a component ofthe blender according to the embodiment of the present disclosure, andFIG. 5 is an exploded perspective view of the main body.

Referring to the drawings, the main body 30 according to the embodimentof the present disclosure may be configured to have a cuboid shape, andmay have a structure in which the seating part 301 protrudes on theupper surface of the main body 30 to seat the container body 10 thereon,and the knob 40 by which the operation of the blender 1 is controlled isdisposed on the front surface of the main body 30.

As for the overall structure of the main body 30, the outer casing 31may be mounted to the outer side of the main body 30 to constitute theexterior of the main body 30. The outer casing 31 may be formed of ametal material such as stainless steel and may be formed of materialshaving plate shapes, which are bent and joined to each other, therebyproviding the shape of a very clean and rigid appearance.

The seating part 301 may have a two-step shape, and an entire appearancethereof may be constituted by a first seating part decoration 314, asecond seating part decoration 316, and a lower decoration 315.

The first seating part decoration 314 and the second seating partdecoration 316 may be formed of the same material as the outer casing 31or of a material having the same texture as the outer casing 31.

The lower decoration 315 may be formed of a plastic or rubber material,and may be formed in a ring shape. In addition, during the mounting ofthe first seating part decoration 314, the lower part 315 may fill spacebetween the first seating part decoration 314 and the outer casing 31such that no gap is visible.

A first exterior material 331 may be mounted to the circumference of theside surface of the first seating part decoration 314. Such a firstexterior material 331 may be formed of a stainless material and mayprotect the first seating part decoration 314.

The first seating part decoration 314 and the second seating partdecoration 316 may have predetermined heights and may be formed in ringshapes as a whole when viewed from the top. The second seating partdecoration 316 may have a smaller diameter than the first seating partdecoration 314, and may be disposed at the center of the first seatingpart decoration 314.

A seating packing 332 may be disposed at the outskirt of the secondseating part 316 arranged at the center of the upper surface 325 of thefirst seating part 314. The seating packing 332 is intended to give asense of stability when the container body 10 is seated on the seatingpart 301, and may be formed of, for example, a rubber material or asilicone material.

The second seating part decoration 316 may have a circular shape as awhole when seen from the top and may be configured to have a portionprotruding laterally.

An insertion space 317 may be defined in the center portion of the uppersurface of the second seating part decoration 316, and a first seatinggroove 321 and a second seating groove 322 may be formed on thecircumference of the upper surface of the second seating part decoration316. A third seating groove 323 and a fourth seating groove 324 may beselectively formed on the upper surface of the second seating partdecoration 316.

The first coil PCB module 310 may be seated in the first seating groove321. A photosensor 311 may be seated in the second seating groove 322. AHall sensor 312 may be selectively seated in the third seating groove323 so as to detect the type of the container body 10 seated on the mainbody 30, and a reed switch 313 may be seated in the fourth seatinggroove 324 so as to detect whether the container body 10 is seated.

The first coil PCB module 310, the photosensor 311, the Hall sensor 312,and the reed switch 313 may be attached to and detached from the first,second, third, and fourth seating grooves 321, 322, 323, and 324,respectively.

When the container body 10 is seated on the main body 30, the Hallsensor 312 may detect a magnet (not shown) attached to the lower part ofthe container body 10 according to the type of the container body 10 andmay detect the type of the container body 10. The magnitude of themagnetic force of a magnet may be different for each type of thecontainer body 10, and accordingly, the type of the container body 10may be detected by using the magnitude of a magnetic force detected bythe Hall sensor 312.

When the container body 10 is seated on the main body 30, the reedswitch 313 may detect a magnet (not shown) mounted to the lower part ofthe container body 10 and may detect whether the container body 10 isseated. When the magnet approaches the reed switch 313, the reed switch313 may be turned on to detect the approaching of the magnet, andthrough the detection of the approaching of the magnet, the seating ofthe container body 10 may be detected.

While the first coil PCB module 310 and the photosensor 311 are seated,and while the Hall sensor 312 and the reed switch 313 are selectivelyseated, a cover 114 may be coupled to the upper part of the secondseating part decoration 316.

The cover 114 may hold and protect the first coil PCB module 310, thephotosensor 311, the Hall sensor 312, and the reed switch 313, and maybe formed of a material having a magnetic field penetration functionsuch that the photosensor 311 or the Hall sensor 312 can sense light ora magnetic field through the cover 114.

While the cover 114 is coupled to the second seating part decoration316, a second exterior material 318 may be mounted to the circumferenceof each of the side surfaces of the cover 114 and the second seatingpart decoration 316.

FIG. 6 is an exploded perspective view of the container body which is acomponent of the blender according to the embodiment of the presentdisclosure, FIG. 7 is a perspective view illustrating the coupledstructure of the inner container body and a handle cover seen at adifferent angle, FIG. 8 is a detailed view of the detection module ofthe container body, and FIG. 9 is an exploded perspective view of thesecond coil PCB module of the container body seen from a lower sidethereof.

Referring to the drawings, the container body 10 according to theembodiment may be configured in a cylindrical shape having the openupper surface. The blade module 14 may be mounted to the lower surfaceof the container body 10, and the container lid 20 may be detachablymounted to the open upper surface of the container body 10.

The container body 10 may be formed of a material such as glass, Tritan,or transparent plastic, etc. to check the state of food therein duringthe operation of the blender 1.

The container body 10 may include the outer container body 11constituting an outer shape thereof, and the inner container body 12having inner space in which food is received.

The inner container body 12 and the outer container body 11 may becoupled to each other and may constitute the overall shape of thecontainer body 10 such that the container body 10 has a double wallstructure.

The inner container body 12 may be spaced apart from the outer containerbody 11, which may define space between the outer container body 11 andthe inner container body 12. The inner container body 12 may have adiameter decreasing gradually downward. The lower part of the innercontainer body 12 may be configured to be inclined or round toward theblade module 14 such that food in the container body 10 may be directedto the blade module 14.

The outer container body 11 may have a cylindrical shape having upperand lower ends which have the same outer diameters, respectively, suchthat the appearance of the container body 10 looks neat.

The outer diameter of the outer container body 11 may be configured tobe the same as the outer diameter of the seating part 301, and while thecontainer body 10 is mounted to the main body 30, the main body 30 andthe container body 10 may be seen as being integrated with each other.

A receiving part (not shown) of the main body may be formed on the lowersurface of the outer container body 11. The receiving part 102 of themain body may have space recessed upward from the lower surface of theouter container body 11 such that the second seating part decoration 316described above can be inserted into the space. Due to the coupling ofthe receiving part 102 of the main body to the second seating partdecoration 316, the state of the container body 10 mounted to theseating part 301 may be maintained.

A middle handle 132 may be formed at a side of the upper end of theouter container body 11 by protruding therefrom. When the middle handle132 is formed by protruding, an inner space may be defined at the sideof the upper end of the outer container body 11 to receive the detectionmodule 151.

An outer handle 131 may be coupled to the outer side of the middlehandle 132, and an inner handle 133 may be coupled to the inner side ofthe middle handle 132 so as to constitute the handle 13 as a whole.

The upper end of the inner container body 12 may be configured to havean inclined surface 122 having an inner diameter decreasing graduallydownward. Accordingly, in a process in which the container lid 20 isinserted to the open upper surface of the container body 10, thecontainer lid 20 may be configured to seal the inner container body 12while being gradually brought into close contact with the innercontainer body 12.

The upper inclined surface of the inner container body 12 may beconfigured from the upper end of the container body 10 to the upper endof the inner guide 121, and may be configured along the circumference ofthe inner surface of the container body 10.

The inner guide 121 may be formed on the inner side surface of the innercontainer body 12. The inner guide 121 may extend from the inclinedsurface 122 to the bottom surface of the inner container body 12.

The second coil PCB module 110 may be disposed on the lower part of theinner container body 12. As described above, the second coil PCB module110 may be embodied with the second induction coil 201 patterned on thePCB substrate. The second induction coil 201 may be wound multiple timeson the PCB substrate in a spiral shape relative to a center point 201 a.

The second coil PCB module 110 may be fixedly mounted to a lower plate113, and while the second coil PCB module 110 is fixedly mounted to thelower plate 113, the cover 114 may be coupled to the lower plate 113.

In addition, the second connector 111 may be installed at a side of theupper surface of the second coil PCB module 110 by protruding therefromto electrically connect the second induction coil 201 with theconductive member 161.

A receiving part 116 having an open upper surface may be installed onthe upper surface of the cover 114 by protruding therefrom to receivethe second connector 111 from a position under the cover 114, and theconductive member 161 may be coupled to the second connector 111 exposedthrough the receiving part 116 to be electrically connected to thesecond coil PCB module 110.

The detection module 151 may be installed on the inner side of the upperend portion of the container body 10 to which the handle 13 is coupled.The detection module 151 may be embodied as a PCB and may include aswitch which can be turned on/off as described later. Such a switch maybe switched on only under a specific condition.

The detection module 151 may detect whether the container lid 20 closesthe container body 10. Specifically, when the container lid 20 closesthe container body 10, the switch located inside the detection module151 may be turned on by the triggering member 210 installed inside thecontainer lid 2.

Accordingly, in the embodiment, when the switch in the detection module151 is turned on, the detection module 151 may detect the closure of thecontainer lid 20.

The detection module 151 may be seated in a groove 153 formed thereunderand may maintain stability thereof. The first connector 152 may bemounted to the detection module 151 such that the detection module 151is electrically connected with the conductive member 161.

The conductive member 161 may be disposed between the outer containerbody 11 and the inner container body 12. The conductive member 161 maybe disposed by extending in the longitudinal direction of the containerbody 10 from the upper part of the container body 10 to the lower partthereof.

The conductive member 161 may be formed of a transparent material tosecure and maintain the transparency of the outer container body 11 andthe inner container body 12 formed of a material such as glass, Tritan,or transparent plastic, etc. In the embodiment, the conductive member161 may include a transparent electrode film (ITO).

The first end of the conductive member 161 may be electrically connectedto the detection module 151 by the first connector 152, and the secondend of the conductive member 161 may be electrically connected to thesecond coil PCB module 110 by the second connector 111.

Specifically, the first end of the conductive member 161 may beconnected to the switch provided in the detection module 151, and thesecond end of the conductive member 161 may be connected to the secondinduction coil 201 provided in the second coil PCB module 110.

In this case, the transparent electrode film may be configured to have acurved surface in a section. That is, the transparent electrode film maybend at about 90 degrees to be connected to the detection module 151.The angle of the curved surface may be changed according to the positionof the detection module 151.

The conductive member 161 may be in contact with the inner surface ofthe outer container body 11 or with the outer surface of the innercontainer body 12 and may extend from the upper part of the containerbody to the lower part thereof. In this case, when the transparentelectrode film is in contact with the inner surface of the outercontainer body 11 or the outer surface of the inner container body 12, ahole may be formed in at least a portion of the transparent electrodefilm. This is intended such that air bubbles which may occur when thetransparent electrode film is in contact with the inner surface of theouter container body 11 or the outer surface of the inner container body12 can escape through the hole. To this end, the center portion of thetransparent electrode film may be perforated to remove air bubbles.

The upper end part of the conductive member 161 may be installed bybending in a section according to the shapes of the outer container body11 and the inner container body 12.

In the embodiment, the conductive member 161 may be made of atransparent material. Accordingly, when seeing the container body 10from the outside, the transparency of the entirety of the container body10 made of a transparent material may be maintained without beingimpaired.

The triggering member 210 may be mounted to the inside of a side surfaceof the container lid 20 such that the triggering member 210 is locatedat a position corresponding to the detection module 151. When thecontainer lid 20 closes the container body 10, the triggering member 210may be installed to approach the detection module 151 within apredetermined distance.

When the triggering member 210 approaches the detection module 151within a predetermined distance, the switch of the detection module 151may be turned on.

Specifically, when the container lid 20 closes the container body 10,the triggering member 210 installed inside the container lid 20 mayapproach the detection module 151 within a predetermined distance, andthe switch of the detection module 151 may be turned on. When thecontainer lid 20 is opened, the triggering member 210 of the containerlid 20 may move away by a predetermined distance from the detectionmodule 151 and the switch of the detection module 151 may be turned off.

FIG. 10 is a partial cross sectional view schematically illustrating theconfiguration of a portion of the blender according to the embodiment ofthe present disclosure, FIG. 11 is a detailed view of the upper surfaceof the first coil PCB module of the main body, FIG. 12 is a detailedview of the lower surface of the second coil PCB module of the containerbody, and FIG. 13 is a view schematically illustrating arrangementbetween the first and second coil PCB modules.

Referring to the drawings, the first coil PCB module 310 may beinstalled at a first side of the upper part of the main body 30 of theblender 1 according to the embodiment of the present disclosure.

The first coil PCB module 310 may be embodied with the first inductioncoil 101 patterned on a PCB substrate. The first induction coil 101 maybe wound multiple times on the PCB substrate in a spiral shape relativeto a center point 101 a.

The main body 30 may include a power supply part 103 therein. The powersupply part 103 may apply current to the first induction coil 101. Whenthe current is applied to the first induction coil 101, a magnetic fieldmay be generated in the first induction coil 101.

The power supply part 103 may be mounted to the first coil PCB module310, or to the control PCB module 60.

The power supply part 103 may change the intensity of the currentapplied to the first induction coil 101, and the intensity of themagnetic field of the first induction coil 101 may be changed by thechange of the intensity of the current.

The main body 30 may include a current detection part 330 for detectingcurrent of the first induction coil 101. The current detection part 330may be mounted to the first coil PCB module 310.

The main body 30 may include the controller 104 provided therein. Thecontroller 104 may be connected to the current detection part 330 andthe motor assembly 50 described above, and may drive the motor 51 of themotor assembly 50 by using the current of the first induction coil 101detected by the current detection part 330. Specifically, when currentdetected by the current detection part 330 changes, the controller 104may drive the motor 51. The controller 104 may be mounted to the controlPCB module 60 or the first coil PCB module 310 described above.

The second coil PCB module 110 may be installed at a side of the lowersurface of the container body 10.

The second coil PCB module 110 may be embodied with the second inductioncoil 201 patterned on a PCB substrate. The second induction coil 201 maybe wound multiple times on the PCB substrate in a spiral shape relativeto the center point 201 a.

Like the embodiment illustrated in the drawing, when the container body10 is seated on the main body 30, the first induction coil 101 of themain body 30 and the second induction coil 201 of the container body 10may be disposed at a predetermined interval at positions correspondingto each other.

Specifically, when the container body 10 is seated on the main body 30,the first induction coil 101 and the second induction coil 201 may beconcentric in the two center points 101 a and 201 a, respectively, andmay be disposed to be parallel to each other by facing each other.

Inductive coupling between the first induction coil 101 and the secondinduction coil 201 may be selectively performed under a specificcondition.

When the intensity of current applied to the first induction coil 101changes, a magnetic field of the first induction coil 101 may bechanged, and a magnetic flux passing through the second induction coil201 may be changed due to the inductive coupling between the firstinduction coil 101 and the second induction coil 201, so an inducedelectromotive force may be generated in the second induction coil 201.

The positions and arrangement of the first and second induction coils101 and 201 may be determined such that the inductive coupling iseffectively performed therebetween.

As described above, when a voltage is induced in the second inductioncoil 201 due to inductive coupling between the first and secondinduction coils, a magnetic field may be generated in the surroundingarea of the second induction coil 201. Such a magnetic field may affectthe current of the first induction coil 101.

A current applied to the first induction coil 101 by the power supplypart 103 may be different from a current of the first induction coil 101when a magnetic field generated in the second induction coil 201 due toa voltage induced in the second induction coil 201 by the inductivecoupling affects the first induction coil 101.

This is caused by the impact of the magnetic field of the secondinduction coil 201 on the first induction coil 101, and the change ofthe electrical characteristics of the first induction coil 101 may causethe change of the current of the first induction coil 101.

Accordingly, in the embodiment, when the current detection part 330detects the current of the first induction coil 101, the controller 104may check whether the change of the detected current occurs, and whenthe change of the detected current occurs, the controller 104 maydetermine that inductive coupling between the first and second inductioncoils 101 and 201 is performed.

The detection module 151 may be mounted to the upper end part of thecontainer body 10. In the embodiment, in the upper end part thecontainer body 10, the detection module 151 may be mounted between theouter container body 11 and the inner container body 12. The detectionmodule 151 may be embodied with the switch 151 a to be described latermounted to a PCB substrate.

The triggering member 210 may be mounted on a side of the side surfaceof the container lid 20. When the container lid 20 closes the containerbody 10, the triggering member 210 may be disposed to approach thedetection module 151 located substantially at the same height as thetriggering member 210 within a predetermined distance.

When the container lid 20 closes the container body 10, the triggeringmember 210 of the container lid 20 may approach the detection module 151within a predetermined distance, and the switch 151 a of the detectionmodule 151 may be turned on. Accordingly, the detection module 151 mayfunction to detect the closure of the container lid.

In the embodiment, the triggering member 210 may be a magnetic body, andthe switch 151 a may be a reed switch.

In the embodiment, the reed switch may be turned off in an initialstage, and when the magnetic body approaches the reed switch within apredetermined distance, the reed switch may be turned on.

The detection module 151 and the second coil PCB module 110 may beelectrically connected to each other through the transparent conductivemember 161. Specifically, the transparent conductive member 161 mayelectrically connect the switch 151 a of the detection module 151 withthe second induction coil 201 of the second coil PCB module 110.

The conductive member 161 may include a transparent electrode film(ITO). When the transparent electrode film ITO is made of a transparentmaterial, the transparent electrode film may have characteristicscapable of conducting current. In the embodiment, a reason in which theconductive member 161 is made of a transparent material like thetransparent electrode film ITO is that when the conductive member 161 isdisposed vertically on the container body 10 made of a transparentmaterial, the transparency of the container body 10 can be maintained.

The transparent electrode film (ITO) may be installed at variouspositions. According to the embodiment, the transparent electrode filmmay be installed between the outer container body 11 and the innercontainer body 12. The transparent electrode film may be preferablyattached to the inner surface of the outer container body 11 or on theouter surface of the inner container body 12.

For another example, the transparent electrode film (ITO) may beattached to the outer surface of the outer container body 11, and inthis case, the transparent electrode film (ITO) may be coated with atransparent coating material such that the transparent electrode film isprotected from the outside.

The transparent electrode film (ITO) may be disposed in the longitudinaldirection of the container body 10 from the detection module 151 of theupper part of the container body 10 to the second coil PCB module 110 ofthe lower part of the container body 10. Accordingly, although thetransparent electrode film (ITO) is disposed in the verticallongitudinal direction of the container body 10, the transparency of thecontainer body 10 may be maintained.

Meanwhile, the second induction coil 201 and the switch 151 a may beelectrically connected in series to each other. A resistor may also beselectively added to the serial connection. Accordingly, according tothe turn on/off of the switch 151 a, power from the second inductioncoil 201 may be supplied and interrupted by the resistor.

FIG. 14 is a view illustrating an example of an equivalent circuitdiagram of the blender of FIG. 10, and FIG. 15 is a graph illustratingthe experimental result of the change of current detected by the currentdetection part of the main body in the blender of FIG. 10.

Referring to the drawings, in the main body 30, the first induction coil101 may be connected to the power supply part 103, and may be connectedto the current detection part 330.

The current detection part 330 may be connected to the controller 104and the motor 51.

The power supply part 103 may supply current to the first induction coil101, and a magnetic field may be generated in the first induction coil101 by the supplied current.

The power supply part 103 may control the intensity of current suppliedto the first induction coil 101 and may induce the change of themagnetic field of the first induction coil 101.

In the container body 10, the second induction coil 201 may be connectedto the detection module 151.

In the embodiment, the second induction coil 201 and the detectionmodule 151 may be connected to each other by the conductive member 161made of a transparent material.

The detection module 151 may include the switch 151 a turned on/offunder a specific condition. In the embodiment, such a switch 151 a mayinclude a reed switch.

The detection module 151 may further include a resistor connected inseries to the switch 151 a as needed.

Operation in such an equivalent circuit diagram will be described.

In a state in which the container lid 20 does not close the containerbody 10, the detection module 151 may not detect the triggering member210, so the turn-off state of the switch 151 a may be maintained.

In a state in which the switch 151 a is turned off, the second inductioncoil 201 and the switch 151 a may not form a closed circuit, soinductive coupling between the first induction coil 101 and the secondinduction coil 201 may not occur.

When the container lid 20 closes the container body 10, the triggeringmember 210 may approach the detection module 151 within a predetermineddistance, and the switch 151 a of the detection module 151 may be turnedon by the triggering member 210.

When the switch 151 a is turned on, the second induction coil 201 andthe switch 151 a connected in series to each other may form a closedcircuit.

As described above, when the closed circuit is formed, inductivecoupling between the first induction coil 101 and the second inductioncoil 201 may be performed, and a voltage may be induced in the secondinduction coil 201. Of course, in this case, current may be beingapplied from the power supply part 103 to the first induction coil 101.

In this case, the current detection part 330 may detect the current ofthe first induction coil 101 in real time and transmit the current tothe controller 104. The controller 104 may check whether there is achange in the detected current. When there is a change in the detectedcurrent, the controller 104 may determine that the container lid 20 ofthe container body 10 is closed and may operate the motor 51.

Specifically, the current detection part 330 may detect current flowingin the first induction coil 101. In a state in which the container lid20 does not close the container body 10, the switch 151 a may be in aturn-off state, so the current detection part 330 may detect onlycurrent applied to the first induction coil 101 from the power supplypart 103.

Next, when the container lid 20 closes the container body 10, the switch151 a may be in a turn-on state, and a voltage may be induced in thesecond induction coil 201 by inductive coupling between the first andsecond induction coils 101 and 201.

A magnetic field may be generated in the second induction coil 201 bythe voltage induced in the second induction coil 201, and such amagnetic field may affect electrical characteristics of the firstinduction coil 101.

In this case, the impact of the magnetic field on the electricalcharacteristics of the first induction coil may be the change of currentof the first induction coil 101, specifically, the change of themagnitude of the current thereof.

Accordingly, when the change of the current of the first induction coil101 detected by the current detection part 330 is checked, thecontroller 104 may determine that the container lid 20 of the containerbody 10 is closed.

FIG. 15 illustrates the experimental result of the change of the currentof the first induction coil 101 according to the opening/closing of thecontainer lid 20 of the container body 10, that is, the turn on/off ofthe switch 151 a.

Referring to the drawing, the magnitude of the current of the firstinduction coil when the switch 151 a is turned on is 1.5V less than themagnitude of the current of the first induction coil when the switch 151a is turned off.

Accordingly, in the embodiment, the current of the first induction coil101 in a state in which the container lid is opened and the current ofthe first induction coil 101 in a state in which the container lid isclosed may be compared with each other, and when there is changetherebetween, the controller 104 may operate the motor 51.

Accordingly, the blender 1 may operate only under the specific conditionof the closure of the container lid.

FIG. 16 is a flowchart illustrating a process in which the main bodydetects the closure of the container lid according to the embodiment ofthe present disclosure.

Referring to FIG. 16, in the embodiment, when the container lid 20closes the container body 10 at S101, the switch 151 a of the detectionmodule 151 may be turned on by the triggering member 210 mounted insidea side surface of the upper end of the container lid 20 at S103.

As described above, when the switch 151 a is turned on, the switch 151 aand the second induction coil 201 may form a closed circuit, soinductive coupling between the first induction coil 101 and the secondinduction coil 201 may be performed at S105.

Power may be generated in the second induction coil 201 due to suchinductive coupling. That is, induced electromotive force may begenerated in the second induction coil 201.

A magnetic field may be generated in the second induction coil 201 bythe induced electromotive force generated in the second induction coil201 and such a magnetic field may change the electrical characteristicsof the first induction coil 101.

The current detection part 330 may detect the current of the firstinduction coil 101, and when the controller 104 detects the change ofthe detected current at S107, the controller 104 may detect the closureof the container lid of the container body 10 at S109.

FIG. 17 is a flowchart describing a process in which the main bodydetects the closure of the container lid according to another embodimentof the present disclosure.

Referring to FIG. 17, according to the blender 1, in a state in whichthe container body 10 is seated on the main body 30, when current isapplied to the first induction coil 101 at S201, the current detectionpart 330 may detect the current applied to the first induction coil 101at S203.

Next, whether the container lid 20 of the container body 10 is closedmay be determined at S205. Whether the container lid 20 closes thecontainer body 10 may be determined according to whether the triggeringmember 210 mounted inside a side surface of the upper end part of thecontainer lid 20 is detected by the detection module 151 located at theupper end part of the container body 10.

When the container lid 20 closes the container body 10, the triggeringmember 210 mounted inside a side surface of the upper end part of thecontainer lid 20 may approach the detection module 151 within apredetermined distance.

Accordingly, when the triggering member 210 approaches the detectionmodule 151 within a predetermined distance due to the closure of thecontainer lid, the switch 151 a of the detection module 151 may bechanged from a turn-off state to a turn-on state at S207.

As described above, when the switch 151 a is changed from the turn-offstate to the turn-on state, the second induction coil 201 and the switch151 a may form a closed circuit, so inductive coupling between the firstinduction coil 101 and the second induction coil 201 may be performed atS209.

Induced electromotive force may be generated in the second inductioncoil 201 by such inductive coupling, and a magnetic field may begenerated in the second induction coil 201 by the induced electromotiveforce. Such a magnetic field may affect the electrical characteristicsof the first induction coil 101, and thus the current of the firstinduction coil 101 may be changed.

Accordingly, the current detection part 330 may detect a current flowingin the first induction coil 101 after the inductive coupling isgenerated at S211. Accordingly, the detected current value may betransmitted to the controller 104.

Accordingly, the controller 104 may detect whether there is a change inthe current of the first induction coil detected by the currentdetection part 330 at S213. That is, as described above, the controller104 may check whether the current flowing in the first induction coil101 is changed due to the impact of the magnetic field generated in thesecond induction coil 201.

When the controller 104 detects a change in the current of the firstinduction coil, the main body 30 may detect the closure of the containerlid of the container body 10 at S215.

As described above, when the container lid 20 closes the container body10, inductive coupling between the first and second induction coils 101and 201 may be generated, and the controller 104 may detect the closureof the container lid 20 by detecting the change of current in the firstinduction coil 101 due to such an inductive coupling.

The embodiments of the present disclosure have been described above withreference to the accompanying drawings, but the blender of the presentdisclosure is not limited to the above embodiments and may bemanufactured in a variety of different forms. Those skilled in the artto which the present disclosure belongs will understand that the blenderof the present disclosure may be embodied in other specific formswithout changing the spirit or essential features of the presentdisclosure. Therefore, it should be understood that the embodimentsdescribed above are illustrative in all respects and not restrictive.

1. A blender comprising: a main body comprising a first induction coil,and a current detection part to detect a current of the first inductioncoil; a container body comprising a second induction coil that iscapable of inductively couple to the first induction coil when thecontainer body is seated on the main body, and a detector to selectivelyallow the second induction coil to inductively couple to the first coil;and a conductive member made of a transparent material, wherein thesecond induction coil and the detector are electrically connected toeach other by the conductive member.
 2. The blender of claim 1, whereinthe conductive member is disposed in a longitudinal direction of thecontainer body from an upper part of the container body to a lower partthereof, wherein a first end of the conductive member is electricallyconnected to the detector, and a second end of the conductive member iselectrically connected to the second induction coil.
 3. The blender ofclaim 2, wherein the container body comprises inner and outer containerbodies, and the conductive member is disposed between the inner andouter container bodies of the container body.
 4. The blender of claim 2,wherein the first end of the conductive member is connected to thedetector by a first connector which is detachable from the conductivemember, and the second end of the conductive member is connected to thesecond induction coil by a second connector which is detachable from theconductive member.
 5. The blender of claim 4, wherein the conductivemember comprises a transparent electrode film.
 6. The blender of claim5, wherein a portion of the transparent electrode film is configured tobe curved.
 7. The blender of claim 5, wherein a hole is formed in atleast a portion of the transparent electrode film.
 8. The blender ofclaim 1, wherein the current detection part detects the current of thefirst induction coil before and after the inductive coupling between thefirst and second induction coils.
 9. The blender of claim 8, wherein amagnitude of the current of the first induction coil after the inductivecoupling is smaller than a magnitude of the current of the firstinduction coil before the inductive coupling.
 10. The blender of claim8, wherein the main body comprises a controller, wherein the controlleris configured to determine whether there is a change in the current ofthe first induction coil detected by the current detection part.
 11. Theblender of claim 1, further comprising: a container lid having atriggering member, wherein the inductive coupling between the firstinduction coil and the second induction coil is allowed when thecontainer lid closes the container body.
 12. The blender of claim 11,wherein when the detector detects the triggering member, the inductivecoupling between the first and second induction coils is allowed. 13.The blender of claim 12, wherein the detector comprises a switch turnedon by the triggering member, wherein when the triggering member iswithin a predetermined distance of the detector according to thecontainer lid closing the container body, the switch is turned on, sothat the inductive coupling between the first and second induction coilsis allowed.
 14. The blender of claim 13, wherein the second inductioncoil and the switch are connected in series to each other, and when theswitch is turned on, the second induction coil and the switch form aclosed circuit.
 15. The blender of claim 1, wherein the first and secondinduction coils are configured to be patterned on first and secondprinted circuit board (PCB) substrates, respectively, and are woundmultiple times on the same planes as the first and second PCBsubstrates, respectively, in spiral shapes relative to center points ofthe first and second induction coils.
 16. The blender of claim 15,wherein when the container body is seated on the main body, the firstand second PCB substrates are parallel to each other to face each other,and are disposed such that the first and second induction coilspatterned on the first and second PCB substrates, respectively, have thesame center points.
 17. The blender of claim 15, wherein the first andsecond PCB substrates are attachable to and detachable from the mainbody and the container body, respectively.
 18. The blender of claim 1,wherein the main body includes a motor, and when the current of thefirst induction coil changes, the motor is operable.
 19. The blender ofclaim 18, wherein the main body comprises a controller, and when thecontroller determines that there is a change in the current of the firstinduction coil detected by the current detection part, the controller isconfigured to allow the motor to operate.
 20. The blender of claim 13,wherein the triggering member is a magnetic body and the switch is areed switch.